Type-writing machine.



PATENTED MAY 5, 1903.

0. H. SHEPARD. TYPE WRITING MACHINE.

APPLICATION FILED JAN. 16, 1901.

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0.. H. SHEPARD. TYPE WRI-TINGMAGHINE. A PPLIUATION FILED JAN. 16, 1901.

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No. ta /3216. Patented May 5, 1903.

UNITE. STATES CHARLES H. SHEPARD, OF BROOKLYN, NEW YORK, ASSIGNOR TO \VYOKOFF, SEAMANS & BENEDICT, OF ILION, NEW YORK, A CORPORATION OF NE\V YORK.

TYPE-WRITING MACHINE.

SPECIFICATION forming part of Letters Patent N 0. 727,216, dated May 5, 1903. Application filed January 16, 1901. Serial No. 43,456. (No model.)

To all whom it may concern: In the accompanying drawings, Figure 1 is Be it known that I, CHARLES H. SHEPARD, a view, partly in section, of the right-hand side a citizen of the United States and a resident of a Remington No. 6 type-writing machine, of the borough of Brooklyn, city of New York, showing my improvements applied thereto,

in the county of Kings and State of New York, the parts being in normal position. Fig. 2 is have invented certain new and useful Imadetail view of a key-locking device. Fig. provements in Type -Writing Machines, of 3 is an elevation, partly in section, of the which the following is a specification. left-hand side of said machine, showing the My invention relates to'the case-shiftshifting operation in progress. Fig. 4 is a to ing mechanisms of type-writing machines cross-section of the machine. Fig. 5is a dein which a single set of keys is employed for tail of the platen-frame hinge. Fig. 6 is a writing two or more sets of characters and in plan showing the platen-frame, the carriage which a shift-key is operated to efiect a relaor truck, and the new hinge construction, tive transverse movement between the paper one ofv the hinges being in section.

I5 and the types. It is difficult when operating In the several views similar parts are desigat high speed to so time the successive operanated by similar numerals of reference, and tions of the shift-key and the type-keys as certain portions are omitted or broken away that the capital letters shall appear in their to more clearly disclose the invention. proper alinement with relation to the lower- The framework of the machine comprises 20 case letterswhich follow them. If there is a a base 1, corner-posts 2, and a top plate or sluggish movement of the shifting mechantype-ring 3. Upon the latter are mounted ism or a premature operation of the type-key, type-bars 4, connected by links 5 to key-levers either the impression of the type appears out 6, which are pivoted at 7 in the base and proof alinement or else a blurred and nnintellivided with keys 8 and returning-springs 9.

25 gible impression is made upon the paper, in- The type impressions'are made upon a platen cluding part of the capital type and part of 10, which is journaled at 11 in a platen-frame the lower-case type. In correcting such miscomprising end bars 12 13, front bar 14, and takes the appearance of the page is marred. rear bar 15. Said platen is connectedin rear and much time and labor consumed. Still bya double hinge to a truck 16, whose wheels 30 other faulty operations are liable to occur in 17 run upon afixed guide-rail 18. Atits forsome case-shift machines, such as the clashward portion the platen-frame has a roll 19, ing or interlocking of parts. which runs upon a shift-rail 20, the latter be- It is the object of myinvention to overcome; ing supported upon rocker-arms 21, which all of these objections and to provide simple are fixed upon a rock-shaft 22, journaled in 35 and effective means for preventing the types lugs 23, depending from the top plate. The from printing until after the completion of carriage is provided with a rack 24, which the shifting operation. meshes with a pinion 25, suitably connected To this end myinvention consists, broadly, 'to an escapenient-wheel 26. Dogs 27 and 28 in the combination, with type-keys and a cooperate with said wheel to control the let- 40 shift-key, of means operated bythe shift-key tor-feeding movements of the carriage under for blocking or preventing the operation of the tension of a spring-barrel, (not shown,) the type-keys. said dogs being mounted upon a rocker 2.9,

My invention also consists in a novel form which is pivoted at. 30 in a bracket 31 and of hinge for the shifting-platen carriage of a which has a forwardly-extending arm 32, pro- 45 type-writing machine; and it further convided with lateral branches 33. Upon these sists in certain features of construction,combranches is hung, by means of hooks 34, a binations of devices, and arrangements of universal bar 35, extending transversely beparts, all as will be hereinafter fully'set forth, neath the key-levers and in the path of the and particularly pointed out in the concludlatter, so that when any lever is depressed 5o ing claims. to swing its type-bar to print said universal 10o bar is carried down, the dog-rocker is rocked, and the dogs 27 and 28 caused to assume a different relation to the escapement-wheel 26. When the type-key is released to permit the return of the type-bar to normal position, the universal bar is lifted by a spring 36 and the 7 dogs are returned to normal position, thereby permitting a feeding movement of the carriage.

The ordinary shift-key of the machine is designated 37 and is mounted upon a lever 38, pivoted at 39 between a pair of ears 40, supported at the left of the machine upon an inwardly-extending bracket 41, which is socured by a screw 42 to the side wall of the base. This lever 38 is connected by a strap 43 and link 44 to a pivot 45, which is so mounted upon the left-hand rocker-arm 46 of the platen-shifting frame that a depression of the lever 38 pulls said pivot 45 downwardly and rocks the shifting-frame rearwa rdly, thus shifting the platen-frame to the position for printing capital letters or to upper-case position.

On the right-hand side of the machine is provided an auxiliary shift-key 47, mounted upon a lever 48, pivotally supported at 49 upon a bracket 50, secured to the right-hand side wall of the base by a screw 51. This lever is connected by a link 52 to an extension 53,formed upon the right-hand rocker-arm 21.

Since all of the parts hereinabove mentioned excepting the platen-frame hinge are in common use upon the Remington No. 6 type-writing machine, it is not deemed essential to describe them more fully.

Just over the key-levers and substantially in the vertical plane of the universal bar 35 I mount a transverse horizontal rock-shaft 54. Near the right-hand end thereof I mount an upwardly-extending catch, which is preferably composed of two parts 55 and 56, the latter being the shorter of the two and being pivoted at 57 to the lower main arm 55. These two parts are connected by a spring 58,which is attached by a screw 59 to the arm 55 and secured at 60 to the part 56, thereby holding when the catches are rocked upon the shaft 54 the downward movement of said frame,

and hence the printing movements of the type-key levers and type-bars, is blocked or prevented. The arm 55 is connected by a forwardly extending link 62 with the lower end of an arm 63, which is attached to and extends downwardly from the right-hand operating-arm 53 of the platen-shifting frame, so that whenever said frame is vibrated the arm 55 is swung forwardly, the rock-shaft 54 is rocked, and the other arm 61 is also swung forwardly, both of the catch portions passing just beneath the branches 33.

In operation when the shift-key 37 is depressed the lever 38 is swung downwardly about-its pivot 39 and through the link 44 and pivot 45 swings the entire shifting-frame 20 21 22 46, and thereby pushes the platenframe rearwardly upon its hinge, so that the rear or capital letter upon the type carried at the end of the bar 4 may make an impression. During this movement the catches tem porarily occupy positions directly beneath thebranches 33 of the dog-rocker frame, as illustrated at Fig. 3, thereby preventing the normal or full operation of the dog-rocker, universal bar, keylevers, and types, so that no printing can occur while the platen is in a midway position. The catches are swung far enough to escape the branches 33, so that the dog-rocker, and hence the keys and types, may be operated in the usual manner. Upon releasing the shiftkey from pressure the parts are returned to normal positions by means of the usual spring 64, and during said return the catches pass again beneath the branches 33, so as to prevent premature operation thereof. Thus it will be seen that a type im ression cannot be made during either the forward or backward shifting movements of the platen, so that it becomes impossible for a double or blurred impression to be made or for the capital types to appear out of alinement with the lower-case types. Thus no matter how high the speed of operation or how poorly timed are the successive operations of the shift-key and the type-keys still it is not possible for the operator to produce the faulty work hereinbefore referred to. Should the shift-key at any time be operated when a type-key is partly or fully depressed, and hence when the branches of the dogrocker 33 are in a depressed position, the pivoted and spring-controlled fingers 56 upon striking the said branches will yield, so that no injury can be done either to the dogrocker or to the catches and also so that the shifting movement of the platen-frame may be effected.

The pivot 45, above referred to, is mounted, as usual, upon a lever 65, which is pivoted at 66 to a depending portion 67 of the rockerarm 46 of the shifting-frame. Pivoted at 68 to another depending portion 69 thereof is a handle or lever 70, having an arm 71, which has a finger 72, working in a slot 73, formed in said lever 65. arm 74, to which is connected the upper end of said spring 64, the latter at'its lower end being caught into a screw-eye 75, tapped into a portion of the framework. Upon swinging the lever 70 upwardly about the pivot 68 the finger 72 thereon swings the lever for- Said handle also has an r IIO wardly, and at the same time the arm 74 carries the spring over the dead-center 68,whereby the shifting frame and the platen-frame mechanism to go from one case to another.v

The parts are so constructed and timed that the catches or stops, which normally remain out of operative relation to thedog-rocker, so as to permit the operation of the character-keys for printing purposes in one ,case, come into an intercepting position relatively to said dog-rocker immediately the shift-key is started and hold said rocker and its as' sociated parts against movement until the completion of the shifting operation, and hence the operator is prevented from printing a type of the other case until the platen has been shifted sufficiently to insure the striking of such type in alinement with the other types previously impressed or subse-- quently to be printed in the same line, and it will also be observed that on release of the shift-key the stops or catches again coact withthe dog-rocker to prevent printing of a type before the shifting mechanism has been fully restored to its normal position andthe platen likewise brought back to its normal position. Thus neither during the shifting nor returning movements of the platen can a type be printed out of line or be printed between lines either in whole or in part.

It will be understood that my invention is applicable as well to machines where instead of the platen the types are shifted either singly or all together. Y

Referring now to the platen-frame hingejoint, it will be seen that I have changed the usual Remington No. 6 construction; In said machine the platen-frame is hinged upon the upper ends of a pair of rocker-arms 76, which are pivoted at 77 in the ends of the truck 16.

and are united by a rock-shaft 78. In the upper end of'each of these arms I tap a hori-- zontal hole for a screw 79, having a prolonged outwardly-extending head 80 of reduced diameter for coaotion with the usual adjustable stops 81 whereby the shift movements of the platen-carrier are limited. Said screw is provided at its inner end with a 'cylindroconical point 82, which is seated in a pivothole 83, formed in a lug 84, cast upon the platen-frame- The screw may beadjusted longitudinally, so as to move the platenframe endwise relatively to the truck 16,

whereby thetype impressions are enabled to register exactly with the platen-scale usually placed upon saidplaten-frame. Said screws may also be adjusted so as to take up wear and prevent endwise shake of the platenframe, and at the same time said screws permit a free pivotal movement of said platenframe, which is a great desideratum in this class of machines, because it is important that the parts move freely under the action of the shift-key, so as not to fatigue the operator, and it is also important that the parts move accurately or without endshake and skewing in order to produce alined and evenly-spaced work. The outer portion of the screw-point 82 is cylindrical, while the inner portion (designated as 82*) is conical. The cylindrical shape of the screw-points insures that thejoint will wear a long time, while. the conical portion enables the wear to be taken up. A binding-nut 86 is provided for said screw and bears against the inner face of the arm 76.

Numerous changes in details of construction and arrangement may be made within the scope of my invention in adapting the same to various styles of machines,-andparts' of the invention may be used without others.

2. In a type-writing machine, the combination of a platen, a series of pivoted type-bars,

means for efiecting printing movements of" said types, a case-shift mechanism for changing the relation between the pivotal centers of the type-bars'and the printing-center on the platen, and means controlled by said caseshift mechanism for blocking the printing movements of the types. a 7

3. In a type-writing machine, the combina tion of a series of keys, a series oftype-carriers-each of which has a plurality of" types thereon, a platen, means foreffecting printing movements of said types, means for changing the printing-center, and meansfor automatically blocking the printing movements. of said types during-a changing of the printing-center. I

4. In a-type-writing machine, the combination of aseries of types, a platen, means for shifting said platen,'and means for simultaneously blocking the operation of said types.

5. In a type-writing machine, the combination. of-a type mechanism, means-for efit'ecting a printing movement-of said type mechanism, a platen, a case-shift-mechanism for shifting said platen, and a deviceconnected .to said case-shift mechanismand causedat the operation of thelatter to get into the path of'a part which is moved at the printing stroke of the type.

6. In a type-writing machine, the combination of a series of types, a series of keys therefor, a carriage, carriage escapement devices operated by said keys, a platen, a case-shift mechanism, and a catch operatively connected to said case-shift mechanism and arranged to block the operation of said carriage escapement devices and hence of said keys.

7. In a type-writing machine, the combination of a series of types, a series of keys, a carriage, an escapement mechanism therefor including a dog-rocker operated by said keys, a case-shift mechanism, and a catch connected to said case-shift mechanism and arranged in proximity to said dog-rocker.

8. In a type-writing machine, the combination of a platen, a series of types, means for efiecting a printing movement of said types, a series of keys, mechanism for causinga relative shifting movement between said types and said platen, a vibratory device connected to said shift mechanism, and a part controlled by the keys and arranged to be intercepted by said vibratory device.

9. In a type-writing machine, the combination with a series of types and a platen, means for impressing the types on the platen, of a normally inactive catch adapted to block a part that moves in unison with all the types, a shift-key mechanism, and connections between said shift -key mechanism and said catch.

10. In a type-writing machine, the combination of a series of types, a platen, letterfeeding devices including a dog-rocker having branches, a universal bar suspended upon said branches, key-levers connected to said types and constructed to operate said universal bar, a rock-shaft, a pair of normally inactive catches upon said rock-shaft, and adapted to block the movement of said dog-rocker, and means connected to said rock-shaft for shifting said platen.

11. In a type-writing machine, the combination of a series of types, a series of keylevers connected thereto, a platen-carriage, escapement devices for said carriage controlled by said keys, rock-shaft 54, catches thereon, link 62, and a platen-shifting frame to which said link is connected.

12. In a type-writing machine, the combination with a series of types, a platen, and a case-shifting mechanism, of a flexible catch connected to said caseshift mechanism and arranged out of the path of a part which moves in unison with the types, and means for moving said catch into the path of said part.

13. In a type-writing machine, the combination of a series of types, a platen, a caseshift mechanism, a yielding finger connected to said case-shift mechanism and arranged out of the path of a part which moves in unison with the types, and means for causing said finger to intercept said part during the operation of the case-shift mechanism.

14. In a type-writing machine, a catch connected to and moving with a case-shifting mechanism and comprising two parts, one yieldingly pivoted upon the other and occupying a normal position just out of the path of a part which moves in unison with typeimpressing devices.

15. In a type-writing machine, the combination with a series of types, a platen, a carriage, escapement devices, including a dogrocker, and a platen-shifting mechanism, of

rock-shaft 5 4, arms 55 and 61 thereon, yielding fingers 56 carried by said arms and adapted to get into the path of said dog-rocker, and links .62 connecting one of said arms to the case-shift mechanism.

16. In a case shifting and key-blocking mechanism, the combination of rock-shaft 54:, arms 55 and 61 thereon, fingers 56 pivoted on said arms, springs 58, and means connected to the case-shift mechanism for rocking said shaft.

17. In a type-writing machine, a papercarriage comprising a truck, rocker arms thereon, a platen-frame, pivots whereby said platen frame is hinged upon said rockerarms, and means for moving said pivots so as to adjust said platen-frame longitudinally of said truck.

18. In a type-writing machine, the combination, in a paper-carriage, of a truck, rockerarms hinged upon the truck, and a platenframe hinged upon said rocker-arms by means of endwise-adjustable screw-points.

19. In a type-writing machine, the combination in a paper-carriage, of a truck, rockerarms hinged upon the truck, a platen-frame hinged upon said rocker-arms by means of endwise-adjnstable screw-points, and binding-nuts for said screws.

20. In a type-writer paper-carriage, the combination of truck 16, rocker-arms 76, shaft 78 connecting said rocker-arms, screws 79 tapped into said rockerarms and having bearing-points, and a platen-frame arranged between and hinged upon said points.

21. In atype writer paper-carriage, the combination of truck 16, rocker-arms 76,shaft 78 connecting said rocker-arms, screws 79 tapped into said rocker arms and having points, a platen-frame arranged between and hinged upon said points, and heads 80 upon said screws for cooperation with stops 81 upon said truck.

screws for cooperation with stops 81 upon said truck, and binding-nuts 86.

23. In a type-writer paper-carriage, the combination of a truck, a platen-frame, a

IIO

hinge mechanism whereby said platen-frame State of New York, this 15th day of January, is connected to said truck, said hinge mech- A. D. 1901. anism including apair of oppositely-disposed screws having partly-cylindrical and partly- OHARLES H. SHEPARD.

5 conical points. Witnesses: Signed in the borough of Manhattan, city K. V. DONOVAN, of New York, in the county ofNew York and E. M. WELLS. 

